Base | Representation |
---|---|
bin | 10010000101101011001… |
… | …110001110101111000111 |
3 | 11101211111220102021110011 |
4 | 102011223032032233013 |
5 | 130331223334103111 |
6 | 2351014032211051 |
7 | 155543541262141 |
oct | 22055316165707 |
9 | 4354456367404 |
10 | 1243044441031 |
11 | 43a1991a97a8 |
12 | 180ab1099a87 |
13 | 902ac311863 |
14 | 44241189c91 |
15 | 22503ae4021 |
hex | 1216b38ebc7 |
1243044441031 has 8 divisors (see below), whose sum is σ = 1244938696704. Its totient is φ = 1241150358240.
The previous prime is 1243044440999. The next prime is 1243044441143. The reversal of 1243044441031 is 1301444403421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 1243044441031 - 25 = 1243044440999 is a prime.
It is a super-2 number, since 2×12430444410312 (a number of 25 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1243044440984 and 1243044441002.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1243044451031) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27884346 + ... + 27928888.
It is an arithmetic number, because the mean of its divisors is an integer number (155617337088).
Almost surely, 21243044441031 is an apocalyptic number.
1243044441031 is a deficient number, since it is larger than the sum of its proper divisors (1894255673).
1243044441031 is an equidigital number, since it uses as much as digits as its factorization.
1243044441031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86441.
The product of its (nonzero) digits is 18432, while the sum is 31.
Adding to 1243044441031 its reverse (1301444403421), we get a palindrome (2544488844452).
The spelling of 1243044441031 in words is "one trillion, two hundred forty-three billion, forty-four million, four hundred forty-one thousand, thirty-one".
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